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春小麦全生育期地膜覆盖及生育前期地膜覆盖技术在春小麦生长发育过程中有明显的保水效果,增温效应前期明显,且具有明显的生物学效应及增产效果。全生育期和生育前期地膜覆盖最高产量分别为7210.5kg/hm2和7456.5kg/hm2,较无膜春麦分别增产1298.25kg/hm2和1544.25kg/hm2。
During the whole growth period of spring wheat, the plastic film mulching and plastic film mulching at early growth stage had obvious water-holding effect during the growth and development of spring wheat. The warming effect was obvious at the early stage and had obvious biological effects and yield-increasing effects. The highest yield of plastic film mulching in the whole growth period and early growth period was 7210.5kg / hm2 and 7456.5kg / hm2, respectively, which increased yield by 1298.25kg / hm2 and 1544.25kg / hm2 respectively.